Night time Noise Monitoring Results

Station M6a, Aegean Terrace

Date

Start Time

End Time

Weather

Noise level (dB(A))

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Temp. (°C)

Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

12/02/14-a

23:00

23:05

Fine

48

49.5

43.0

Works inside tunnel

Local traffics of Aegean Terence

According to contractor, general construction works was in process accordance to CNP. Free-field measurement, +3dB correction.

8.9

<5

B&K 2238   S/N : 2800932

B&K 4231  S/N: 3003246

12/02/14-b

23:05

23:10

Fine

46

48.0

44.0

12/02/14-c

23:10

23:15

Fine

51

53.0

43.0

12-Feb-14

23:00

23:15

Fine

52

53.7

46.4

Works inside tunnel

Local traffic of Aegean Terence

According to contractor, general construction works was in process accordance to CNP. Free-field measurement, +3dB correction.

8.9

<5

B&K 2238   S/N : 2800932

B&K 4231  S/N: 3003246

Max

52

Min

46